Initial commit: PilotVault multi-service project

Add API Server (Go/PocketBase), Web App (Go BFF + Vue), Fly App
(Flutter/DJI MSDK), Adobe Plugin, and Docker/Docker AIO deployment
configs. Design assets and build artifacts are gitignored.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
tajniak81andClaude Opus 4.8 committed 2026-07-13 11:43:33 +02:00
commit afc6952eda
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// Package opensky is a built-in plugin connecting the OpenSky Network REST API
// (live ADS-B aircraft state vectors). It demonstrates a real third-party
// integration behind the plugin contract, including an OAuth2 client-credentials
// AuthProvider with an anonymous fallback.
//
// Docs: https://openskynetwork.github.io/opensky-api/rest.html
package opensky
import (
"context"
"encoding/json"
"errors"
"io"
"math"
"net/http"
"net/url"
"strconv"
"strings"
"sync"
"time"
"pilotvault/apiserver/internal/plugins"
)
const (
apiBase = "https://opensky-network.org/api"
tokenURL = "https://auth.opensky-network.org/auth/realms/opensky-network/protocol/openid-connect/token"
// Small default bounding box (Netherlands) keeps the health probe cheap.
defaultBBox = "50.5,3.2,53.7,7.3" // lamin,lomin,lamax,lomax
)
func init() {
plugins.Register("opensky", func() plugins.Plugin { return &Plugin{} })
}
// Plugin is the OpenSky connector.
type Plugin struct {
mu sync.Mutex
clientID string
clientSecret string
bbox string
plan string
allowAnonymous bool
client *http.Client
token string
tokenExp time.Time
}
// errAnonDisabled is returned when a probe/call has no resolved credentials and
// the operator has disabled anonymous access.
var errAnonDisabled = errors.New("OpenSky credentials required — anonymous access is disabled")
func (p *Plugin) Descriptor() plugins.Descriptor {
return plugins.Descriptor{
Name: "opensky",
Provider: "OpenSky Network",
Version: "1.0.0",
Kind: plugins.KindBuiltin,
Category: plugins.CategoryAPIsExternal,
Capabilities: []plugins.Capability{
{ID: "states.all", Method: "GET", Endpoint: "/states/all",
Description: "All current aircraft state vectors, world-wide (costs 4 credits/call)."},
{ID: "states.bbox", Method: "GET", Endpoint: "/states/all?lamin&lomin&lamax&lomax",
Description: "State vectors within the configured bounding box (1–4 credits by area)."},
},
AuthType: plugins.AuthOAuth2,
ConfigFields: []plugins.ConfigField{
{Key: "plan", Label: "OpenSky plan", Type: "select",
Options: []plugins.SelectOption{
{Value: "", Label: "Not set — let organizations and users choose"},
{Value: "anonymous", Label: "Anonymous — 400 credits/day"},
{Value: "standard", Label: "Standard (registered) — 4000 credits/day"},
{Value: "contributor", Label: "Contributor — 8000 credits/day"},
},
Help: "Global account tier. Leave it unset to let each organization or user pick their own plan; set a value only to force one plan for everyone. Determines the daily credit allowance shown next to remaining credits."},
{Key: "clientId", Label: "OAuth2 client ID", Type: "text", Help: "Optional — leave blank for anonymous access (lower rate limits)."},
{Key: "clientSecret", Label: "OAuth2 client secret", Type: "password", Secret: true, Help: "Paired with the client ID for authenticated access."},
{Key: "bbox", Label: "Default bounding box", Type: "text", Default: defaultBBox, Help: "lamin,lomin,lamax,lomax — used by the health probe and states.bbox."},
{Key: "allowAnonymous", Label: "Anonymous access", Type: "select", Default: "true",
Options: []plugins.SelectOption{
{Value: "true", Label: "Enabled — allow use without credentials"},
{Value: "false", Label: "Disabled — require OAuth2 credentials"},
},
Help: "Global policy: when disabled, the plugin can only be used once OAuth2 credentials resolve from some layer (superadmin, organization, or user)."},
},
}
}
// planDailyCredits maps an OpenSky plan to its daily credit allowance.
// See https://openskynetwork.github.io/opensky-api/rest.html#api-credits
func planDailyCredits(plan string) int {
switch plan {
case "anonymous":
return 400
case "contributor":
return 8000
default: // "standard"
return 4000
}
}
func (p *Plugin) Init(_ context.Context, config map[string]string) error {
p.mu.Lock()
defer p.mu.Unlock()
p.clientID = strings.TrimSpace(config["clientId"])
p.clientSecret = config["clientSecret"]
p.bbox = strings.TrimSpace(config["bbox"])
if p.bbox == "" {
p.bbox = defaultBBox
}
p.plan = strings.TrimSpace(config["plan"])
if p.plan == "" {
p.plan = "standard" // OpenSky registered-user default
}
// Anonymous access defaults to enabled; only an explicit "false" turns it off.
p.allowAnonymous = !strings.EqualFold(strings.TrimSpace(config["allowAnonymous"]), "false")
p.client = &http.Client{Timeout: 10 * time.Second}
p.token, p.tokenExp = "", time.Time{}
return nil
}
// bearer returns a valid OAuth2 token, fetching/refreshing via client-credentials
// when configured. Returns "" (no error) when running anonymously.
func (p *Plugin) bearer(ctx context.Context) (string, error) {
p.mu.Lock()
id, secret, allowAnon := p.clientID, p.clientSecret, p.allowAnonymous
if p.token != "" && time.Now().Before(p.tokenExp) {
tok := p.token
p.mu.Unlock()
return tok, nil
}
p.mu.Unlock()
if id == "" || secret == "" {
if !allowAnon {
return "", errAnonDisabled
}
return "", nil // anonymous
}
form := url.Values{
"grant_type": {"client_credentials"},
"client_id": {id},
"client_secret": {secret},
}
req, _ := http.NewRequestWithContext(ctx, http.MethodPost, tokenURL, strings.NewReader(form.Encode()))
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
resp, err := p.client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
data, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
if resp.StatusCode != http.StatusOK {
return "", errors.New("token endpoint returned HTTP " + resp.Status)
}
var out struct {
AccessToken string `json:"access_token"`
ExpiresIn int `json:"expires_in"`
}
if err := json.Unmarshal(data, &out); err != nil || out.AccessToken == "" {
return "", errors.New("no access_token in token response")
}
p.mu.Lock()
p.token = out.AccessToken
ttl := out.ExpiresIn
if ttl <= 0 {
ttl = 1800
}
p.tokenExp = time.Now().Add(time.Duration(ttl-30) * time.Second)
p.mu.Unlock()
return out.AccessToken, nil
}
// statesURLBBox builds the /states/all request URL constrained to the configured
// bounding box. Falls back to the whole world if the bbox is malformed.
func (p *Plugin) statesURLBBox() string {
p.mu.Lock()
bbox := p.bbox
p.mu.Unlock()
parts := strings.Split(bbox, ",")
if len(parts) != 4 {
return apiBase + "/states/all"
}
q := url.Values{
"lamin": {strings.TrimSpace(parts[0])},
"lomin": {strings.TrimSpace(parts[1])},
"lamax": {strings.TrimSpace(parts[2])},
"lomax": {strings.TrimSpace(parts[3])},
}
return apiBase + "/states/all?" + q.Encode()
}
// statesURLAll returns the world-wide /states/all URL (no bounding box).
func (p *Plugin) statesURLAll() string { return apiBase + "/states/all" }
// creditCost returns the OpenSky credit cost of a /states/all call over the given
// bounding box, per https://openskynetwork.github.io/opensky-api/rest.html#api-credits:
// 1 credit ≤ 25 sq°, 2 ≤ 100, 3 ≤ 400, 4 for larger or the whole world.
func creditCost(bbox string) int {
parts := strings.Split(bbox, ",")
if len(parts) != 4 {
return 4 // no/invalid box → whole world
}
lamin, e1 := strconv.ParseFloat(strings.TrimSpace(parts[0]), 64)
lomin, e2 := strconv.ParseFloat(strings.TrimSpace(parts[1]), 64)
lamax, e3 := strconv.ParseFloat(strings.TrimSpace(parts[2]), 64)
lomax, e4 := strconv.ParseFloat(strings.TrimSpace(parts[3]), 64)
if e1 != nil || e2 != nil || e3 != nil || e4 != nil {
return 4
}
area := math.Abs(lamax-lamin) * math.Abs(lomax-lomin)
switch {
case area <= 25:
return 1
case area <= 100:
return 2
case area <= 400:
return 3
default:
return 4
}
}
// creditWord renders a credit count with correct pluralisation.
func creditWord(n int) string {
if n == 1 {
return "1 credit"
}
return strconv.Itoa(n) + " credits"
}
// HealthCheck performs a live states query (authenticated when configured, else
// anonymous) and classifies the outcome.
func (p *Plugin) HealthCheck(ctx context.Context) plugins.Health {
start := time.Now()
token, err := p.bearer(ctx)
if errors.Is(err, errAnonDisabled) {
return plugins.Health{Status: plugins.StatusDegraded, LatencyMs: time.Since(start).Milliseconds(),
Detail: err.Error()}
}
if err != nil {
return plugins.Health{Status: plugins.StatusDegraded, LatencyMs: time.Since(start).Milliseconds(),
Detail: "auth failed: " + err.Error()}
}
req, _ := http.NewRequestWithContext(ctx, http.MethodGet, p.statesURLBBox(), nil)
if token != "" {
req.Header.Set("Authorization", "Bearer "+token)
}
resp, err := p.client.Do(req)
lat := time.Since(start).Milliseconds()
if err != nil {
return plugins.Health{Status: plugins.StatusDown, LatencyMs: lat, Detail: err.Error()}
}
defer resp.Body.Close()
_, _ = io.Copy(io.Discard, io.LimitReader(resp.Body, 1<<20))
mode := "anonymous"
if token != "" {
mode = "authenticated"
}
h := plugins.Health{LatencyMs: lat}
switch {
case resp.StatusCode >= 200 && resp.StatusCode < 300:
h.Status, h.Detail = plugins.StatusOK, "OpenSky reachable ("+mode+")"
case resp.StatusCode == http.StatusTooManyRequests:
h.Status, h.Detail = plugins.StatusDegraded, "rate limited (HTTP 429)"
case resp.StatusCode == http.StatusUnauthorized || resp.StatusCode == http.StatusForbidden:
h.Status, h.Detail = plugins.StatusDegraded, "auth rejected (HTTP "+resp.Status+")"
default:
h.Status, h.Detail = plugins.StatusDown, "HTTP "+resp.Status
}
// Surface live credit usage from the rate-limit header, the plan's daily
// allowance, and this probe's cost (e.g. "3996/4000 credits left today · 1 credit/probe").
// The same figures are also exposed structurally (h.Credits) so the UI can
// render a dedicated usage meter without parsing this string.
p.mu.Lock()
bbox, plan := p.bbox, p.plan
p.mu.Unlock()
cost := creditCost(bbox)
credits := &plugins.HealthCredits{Daily: planDailyCredits(plan), ProbeCost: cost, Mode: mode}
if rem := strings.TrimSpace(resp.Header.Get("X-Rate-Limit-Remaining")); rem != "" {
if n, err := strconv.Atoi(rem); err == nil {
credits.Remaining = &n
}
h.Detail += " · " + p.creditsText(rem)
}
h.Detail += " · " + creditWord(cost) + "/probe"
h.Credits = credits
return h
}
// creditsText formats the remaining-credit header against the plan's daily
// allowance. Empty when the header is absent.
func (p *Plugin) creditsText(remaining string) string {
remaining = strings.TrimSpace(remaining)
if remaining == "" {
return ""
}
p.mu.Lock()
daily := planDailyCredits(p.plan)
p.mu.Unlock()
return remaining + "/" + strconv.Itoa(daily) + " credits left today"
}
// Invoke exposes states.all / states.bbox. Part of the contract; no HTTP endpoint
// surfaces it in v1, but it keeps the connector functional for future use.
func (p *Plugin) Invoke(ctx context.Context, action string, _ json.RawMessage) (json.RawMessage, error) {
switch action {
case "states.all", "states.bbox":
token, err := p.bearer(ctx)
if err != nil {
return nil, err
}
target := p.statesURLBBox()
if action == "states.all" {
target = p.statesURLAll() // world-wide (4 credits)
}
req, _ := http.NewRequestWithContext(ctx, http.MethodGet, target, nil)
if token != "" {
req.Header.Set("Authorization", "Bearer "+token)
}
resp, err := p.client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
data, _ := io.ReadAll(io.LimitReader(resp.Body, 8<<20))
return data, nil
default:
return nil, errors.New("unknown action: " + action)
}
}
func (p *Plugin) Shutdown(context.Context) error { return nil }